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20190309,245111132328,331508165892,51222189610023,?

A friend of mine gave me this number puzzling but I have no idea what is the logic.

Does anyone know how to solve?

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    $\begingroup$ I removed the logical-deduction tag (I'm 90% certain that this does NOT involve formal logic), and I thought about adding the number-sequence tag, but I wanted to check with you first on that one. $\endgroup$ – Brandon_J Mar 9 at 17:13
5
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The first number is

The date the question was posted.

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